docs: update README

README.md

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 # spasteg
 
-A secure, self-hostable "burn after reading" paste service written in gleam
+A secure, self-hostable "burn after reading" paste service with ephemeral storage written in [Gleam](https://gleam.run).
+
+## Features
+
+- **Ephemeral pastes** — Content is deleted immediately after first view
+- **No persistence** — All data stored in-memory only (restarts clear everything)
+- **No accounts** — Zero-friction sharing without registration
+- **Self-hosted** — Run your own instance with full control
+- **Fast & lightweight** — Built on the BEAM VM for reliability and performance
+- **Type-safe** — Written in Gleam, a type-safe functional language
+
+## Quick Start
+
+```bash
+# Clone and build
+git clone https://git.kharec.info/Kharec/spasteg.git
+cd spasteg
+gleam run
+```
+
+The server starts on `http://localhost:3000`.
+
+## Usage
+
+1. Visit `http://localhost:3000`
+2. Enter your text in the form
+3. Click "Create Paste"
+4. Share the generated URL
+5. The paste auto-destructs after first access
+
+## Architecture
+
+- **Web framework**: Wisp (Gleam's web framework)
+- **HTTP server**: Mist (HTTP/1.1 & HTTP/2)
+- **HTML rendering**: Lustre (type-safe, declarative HTML generation)
+- **Storage**: In-memory OTP actor (no disk persistence)
+- **Key generation**: Cryptographically random 16-character keys
+
+## Security Notes
+
+- Pastes are stored **unencrypted** in server memory
+- Data is **never written to disk**
+- All data is lost on server restart
+- Intended for ephemeral sharing only — do not store sensitive data
+
+## License
+
+This project is licensed under the GNU General Public License v3.0 or later (GPLv3+). See the [LICENSE](LICENSE) file for details.